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本文介绍一种新的1.45毫米的Selfoe镜和讨论对于脑内狭小空间内窥镜的临床应用。 Selfoe镜头有广宽的视角(现用的型为54°)、焦距从0到无限,其工作范围长度为10.5毫米,而其外径仅有1.45毫米,因此它能够通过一薄壁的16号腰穿针插入。利用安装在Selfoe镜杆周围的纤维束所形成的氙冷光的光源可以获得清晰的图象。
This article describes a new 1.45 mm Selfoe mirror and discusses the clinical application of narrow space endoscopy in the brain. The Selfoe lens has a wide viewing angle (currently 54 °) with a focal length of 0 to infinity with a working range of 10.5 mm and an outer diameter of only 1.45 mm, so it can pass through a thin wall of 16 Insert the waist needle. A clear image can be obtained using a xenon cold light source formed by a bundle of fibers mounted around the Selfoe’s rod.